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摘要:
对采自大兴安岭南部朝吐沟组建组剖面的酸性火山岩(流纹岩)样品开展锆石U-Pb LA-ICP-MS年代学分析，测试结果显示: 样品具有岩浆成因的特征，加权平均年龄为374±10 Ma，指示该酸性火山岩形成于晚泥盆世，发育该套火山岩的朝吐沟组为晚泥盆世地层. 研究认为沿华北板块北缘展布的朝吐沟组火山-沉积建造形成于晚泥盆世一个次稳定-非稳定的被动陆缘盆地沉积环境，这对更准确地认识大兴安岭乃至整个东北地区泥盆纪-石炭纪构造演化以及古地理格局具有重要意义.
Abstract:The paper analyzes the zircon U-Pb LA-ICP-MS geochronology of the acid volcanic rock (rhyolite) samples from Chaotugou Formation type section in southern Daxinganling Mountains. The test results show that the samples are of magmatic origin with the weighted mean age of 374±10 Ma, indicating the acid volcanic rock was formed in Late Devonian, and thus the Chaotugou Formation developed in the volcanic rock belongs to Late Devonian. It is concluded that the volcanic-sedimentary formation of Chaotugou Formation along the northern margin of North China Plate was formed in a substable-unstable passive continental margin basin sedimentary environment in Late Devonian, which is of great significance for more accurate understanding of the Devonian-Carboniferous tectonic evolution and paleogeographic pattern in Daxinganling Mountains and even Northeast China.
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Key words:
- Chaotugou Formation /
- zircon U-Pb age /
- Late Devonian /
- North China Plate /
- Daxinganling Mountains
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[1] 王森, 渠洪杰, 王欢, 等. 内蒙古敖汉旗地区晚泥盆世-早石炭世双峰式火山岩的发现及其地质意义[J]. 地球化学, 2020, 49(2): 150-167. https://www.cnki.com.cn/Article/CJFDTOTAL-DQHX202002003.htm
Wang S, Qu H J, Wang H, et al. Discovery of the Late Devonian-Early Carboniferous bimodal volcanic rocks in the Aohanqi, Inner Mongolia, and their geological significance[J]. Geochimica, 2020, 49(2): 150-167. https://www.cnki.com.cn/Article/CJFDTOTAL-DQHX202002003.htm
[2] 张拴宏, 赵越, 刘建民, 等. 华北地块北缘晚古生代-早中生代岩浆活动期次、特征及构造背景[J]. 岩石矿物学杂志, 2010, 29(6): 824-842. https://www.cnki.com.cn/Article/CJFDTOTAL-YSKW201006017.htm
Zhang S H, Zhao Y, Liu J M, et al. Geochronology, geochemistry and tectonic setting of the Late Paleozoic-Early Mesozoic magmatism in the northern margin of the North China Block: A preliminary review[J]. Acta Petrologica et Mineralogica, 2010, 29(6): 824-842. https://www.cnki.com.cn/Article/CJFDTOTAL-YSKW201006017.htm
[3] 赵越, 翟明国, 陈虹, 等. 华北克拉通及相邻造山带古生代-侏罗纪早期大地构造演化[J]. 中国地质, 2017, 44(1): 44-60. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI201701005.htm
Zhao Y, Zhai M G, Chen H, et al. Paleozoic-early Jurassic tectonic evolution of North China Craton and its adjacent orogenic belts[J]. Geology in China, 2017, 44(1): 44-60. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI201701005.htm
[4] 郑月娟, 张德军, 苏飞, 等. 大兴安岭南段幸福之路组新认识及区域对比[J]. 地质通报, 2023, 42(2/3): 201-214. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD2023Z1002.htm
Zheng Y J, Zhang D J, Su F, et al. New understanding of the Xingfuzhilu Formation in the southern part of the Greater Khingan Mountains and a correlation with the neighboring areas[J]. Geological Bulletin of China, 2023, 42(2-3): 201-214. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD2023Z1002.htm
[5] 马帅, 王永诗, 王学军, 等. 华北东部石炭纪-二叠纪沉积充填过程及其对物源区构造演化的响应[J]. 油气地质与采收率, 2023, 30(4): 1-20. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS202304001.htm
Ma S, Wang Y S, Wang X J, et al. Carboniferous-Permian sedimentary filling process in eastern North China and its response to tectonic evolution of provenance area[J]. Petroleum Geology and Recovery Efficiency, 2023, 30(4): 1-20. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS202304001.htm
[6] 王师捷, 徐仲元, 李长海, 等. 兴蒙造山带中段南缘晚古生代演化过程: 来自苏尼特右旗地区沉积地层及火山岩的证据[J]. 岩石学报, 2020, 36(8): 2493-2520. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB202008014.htm
Wang S J, Xu Z Y, Li C H, et al. Evolution of central-southern margin of the Xing-Meng Orogenic Belt in the Late Paleozoic: Evidence from Carboniferous-Permian sedimentary formation and volcanic rock in Sonid Right Banner, Inner Mongolia[J]. Acta Petrologica Sinica, 2020, 36(8): 2493-2520. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB202008014.htm
[7] 牛晓露, 刘飞, 冯光英, 等. 华北克拉通北缘晚志留世末-早泥盆世钾质碱性岩的成因及对区域构造演化的限定[J]. 岩石矿物学杂志, 2021, 40(5): 835-858. https://www.cnki.com.cn/Article/CJFDTOTAL-YSKW202105001.htm
Niu X L, Liu F, Feng G Y, et al. Petrogenesis of the Late Silurian to Early Devonian potassic alkaline rocks on the northern margin of the North China Craton and their constraints on the tectonic evolution[J]. Acta Petrologica et Mineralogica, 2021, 40(5): 835-858. https://www.cnki.com.cn/Article/CJFDTOTAL-YSKW202105001.htm
[8] 孙立新, 张云, 李影, 等. 内蒙古赤峰地区晚泥盆世双峰式火山岩地球化学特征与板内伸展事件[J]. 中国地质, 2017, 44(2): 371-388. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI201702013.htm
Sun L X, Zhang Y, Li Y, et al. Geochemical characteristics and intraplate extension of Late Devonian bimodal volcanic rocks in Chifeng area of Inner Mongolia[J]. Geology in China, 2017, 44(2): 371-388. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI201702013.htm
[9] 李文国, 李庆富, 姜万德, 等. 内蒙古自治区岩石地层[M]. 武汉: 中国地质大学出版社, 1996: 1-344.
Li W G, Li Q F, Jiang W D, et al. Stratigraphy (lithostratic) of Nei Mongol Autonomous Region[M]. Wuhan: China University of Geosciences Press, 1996: 1-344.
[10] 胡泽瑾. 内蒙古昭乌达盟朝吐沟组时代应为泥盆纪[J]. 中国区域地质, 1983, 2(6): 141. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD198306015.htm
Hu Z J. The Chaotugou Formation in Ju Ud League in Inner Mongolia should be Devonian[J]. Regional Geology of China, 1983, 2(6): 141. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD198306015.htm
[11] 孙立新, 任邦方, 滕飞, 等. 内蒙古敖汉旗朝吐沟组火山岩LA-ICP-MS锆石U-Pb年龄[J]. 地质通报, 2015, 34(8): 1493-1501. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201508009.htm
Sun L X, Ren B F, Teng F, et al. LA-ICP-MS zircon U-Pb ages of the volcanic rocks from the Chaotugou formation in Aohan Banner, Inner Mongolia[J]. Geological Bulletin of China, 2015, 34(8): 1493-1501. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201508009.htm
[12] 叶浩, 张拴宏, 赵越, 等. 内蒙古赤峰地区泥盆纪晚期火山岩的发现及其地质意义[J]. 地质通报, 2014, 33(9): 1274-1283. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201409002.htm
Ye H, Zhang S H, Zhao Y, et al. Recognition of the latest Devonian volcanic rocks in Chifeng area, northern North China Block, and its geological implications[J]. Geological Bulletin of China, 2014, 33(9): 1274-1283. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201409002.htm
[13] 李莹, 王向东, 胡科毅, 等. 中国石炭纪岩石地层划分和对比[J]. 地层学杂志, 2021, 45(3): 303-318. https://www.cnki.com.cn/Article/CJFDTOTAL-DCXZ202103006.htm
Li Y, Wang X D, Hu K Y, et al. Lithostratigraphic subdivision and correlation of the Carboniferous in China[J]. Journal of Stratigraphy, 2021, 45(3): 303-318. https://www.cnki.com.cn/Article/CJFDTOTAL-DCXZ202103006.htm
[14] 赵志飞, 高玉石, 张启峰. 内蒙古敖汉旗朝吐沟组新发现动物化石意义[J]. 内蒙古煤炭经济, 2019, 37(18): 217. https://www.cnki.com.cn/Article/CJFDTOTAL-LMMT201918141.htm
Zhao Z F, Gao Y S, Zhang Q F. Significance of newly discovered fossils (brachiopod) from the Chaotugou Formation in Aohan Banner, Inner Mongolia[J]. Inner Mongolia Coal Economy, 2019, 37(18): 217. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-LMMT201918141.htm
[15] 田德欣, 王清海, 葛文春, 等. 内蒙古阿尔山绿水碱长花岗岩锆石U-Pb年龄、地球化学特征及构造意义[J]. 世界地质, 2013, 32(4): 681-693. https://www.cnki.com.cn/Article/CJFDTOTAL-SJDZ201304005.htm
Tian D X, Wang Q H, Ge W C, et al. Zircon U-Pb ages and geochemical characteristics of Lvshui alkali feldspar granites in Arshan, Inner Mongolia and their tectonic implications[J]. Global Geology, 2013, 32(4): 681-693. https://www.cnki.com.cn/Article/CJFDTOTAL-SJDZ201304005.htm
[16] 张健, 张德军, 郑月娟, 等. 内蒙古林西上二叠统林西组碎屑锆石LA-ICP-MS年代学及其构造意义[J]. 吉林大学学报(地球科学版), 2020, 50(4): 1090-1103. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ202004014.htm
Zhang J, Zhang D J, Zheng Y J, et al. LA-ICP-MS U-Pb dating of detrital zircons and geological implications of Linxi Formation in Linxi County, Inner Mongolia[J]. Journal of Jilin University (Earth Science Edition), 2020, 50(4): 1090-1103. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ202004014.htm
[17] 袁洪林, 吴福元, 高山, 等. 东北地区新生代侵入体的锆石激光探针U-Pb年龄测定与稀土元素成分分析[J]. 科学通报, 2003, 48(14): 1511-1520. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200314007.htm
Yuan H L, Wu F Y, Gao S, et al. Determination of U-Pb age and trace element of zircons of Cenozoic intrusion in NE by laser-ablation inductively couple plasma mass spectrometry[J]. Chinese Science Bulletin, 2003, 48(14): 1511-1520. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200314007.htm
[18] Andersen T. Correction of common lead in U-Pb analyses that do not report 204Pb[J]. Chemical Geology, 2002, 192(1/2): 59-79.
[19] Pupin J P. Zircon and granite petrology[J]. Contributions to Mineralogy and Petrology, 1980, 73(3): 207-220. doi: 10.1007/BF00381441
[20] Koschek G. Origin and significance of the SEM cathodoluminescence from zircon[J]. Journal of Microscopy, 1993, 171(3): 223-232. doi: 10.1111/j.1365-2818.1993.tb03379.x
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